Classic monsters The Ice Warriors will make their return to Doctor Who this year in a new episode of the BBC sci-fi drama written by Mark Gatiss.
Since first battling Patrick Troughton in 1967, the Warriors have appeared in six serials but haven’t been seen since 1974’s The Monster of Peladon.
But now, after almost 40 years, Doctor Who’s executive producer Caro Skinner has revealed that they’ll be making their comeback in a new story set inside a submarine.
“We've got the most fantastic episode by Mark Gatiss where we are bringing back the Ice Warriors on a submarine," she told SFX.
"We wanted to bring them back because they're wonderful. In the mix of stories that we were planning for this year it felt as if doing something very bold with a monster that hadn't been seen for a while would be really cool.
"Mark is an enormous fan of the Ice Warrior stories and came up with the idea. The sense of a monster of that scale and that size trapped in a really small, contained environment such as a submarine was a really brilliant story to be able to tell.
"They were such a beautiful original design, and are genuinely really scary in terms of what they look like as they're coming towards you in that armour."
The Ice Warriors will make their comeback in the third episode of the new series of Doctor Who after the show returns to TV on Saturday 30 March.
Unlike the Daleks or Cybermen, the Martian Ice Warriors haven’t always been villains in Doctor Who and were featured as neutral characters in the two 1970s Jon Pertwee serials The Curse of Peladon and The Monster of Peladon.
If you’d like to learn more about the Ice Warriors’ past appearances in Doctor Who, read our guides to the stories in which they appeared: The Ice Warriors (1967), The Seeds of Death (1969), The War Games (1969) , The Mind of Evil (1971), The Curse of Peladon (1972) and The Monster of Peladon (1974).
Here’s a clip of The Ice Warriors in action in their eponymous debut story from 1967: